Jemmstone holdings

Jemmstone Holdings invests in companies providing adult-use and medical marijuana at the wholesale and retail levels. Our partners offer access to a wide range of cannabinoid profiles and strengths, and the highest quality products in the marketplace. Jemmstone’s assets offer research, consulting, breeding and seed storage.

Our Partners


“The Oldest and Best in Los Angeles” – Since 2005, CAC Venice has been a legally licensed dispensary in Venice Beach, California. We continue to be a fun, local spot for people who are just starting out with cannabis or for the seasoned professional. Our knowledgeable and friendly staff can help you find whatever you may need, from top shelf quality indoor flower, to premium vaporizers, tinctures, capsules, topicals or delectable edibles. Our large selection of edibles includes vegan, sugar free, and gluten free options. Our goal has always been to provide a safe, caring, and quiet environment for our patients and customers.

As the oldest, legal dispensary in Los Angeles, we pride ourselves on being able to help educate consumers, both medical and recreational, on the phenotypes, strains, cannabinoids, terpenes, strengths, benefits and side effects of cannabis. We are firm believers that an educated consumer is a better consumer.

black box genetics

Black Box Genetics is a seed bank and state of the art breeding facility located in Colorado. 

Using the most advanced technology, we support and educate cannabis growers by conducting research on plant DNA, providing testing, profiling, and offering seed storage.

But we aren’t just researchers, we’re growers too.  That’s important because we have our own research “proving ground” on-site. We also provide marijuana seeds in feminized and non-feminized form, and wholesale flower, to dispensaries across Colorado. 

Our partner and founder is a world class genetics researcher.  Marijuana genetics from around the globe are stored in our facility, including low-THC varieties and high-THC varieties.

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What’s Happening

Upcoming Events

Cannabis Conference 2020


April 21, 2020 – April 23, 2020



Toronto, Ontario

May 28, 2020 – May 31, 2020


3rd Annual Vermont Cannabis & Hemp Convention

Essex, Vermont

May 30, 2020 – May 31, 2020


Benzinga Cannabis Capital Conference

Toronto, Ontario

June 1, 2020 – June 2, 2020



New Orleans, Louisiana

June 3, 2020 – June 4, 2020


NCIA’s Cannabis Business Summit & Expo

San Francisco, California

June 15, 2020 – June 17, 2020


Cannabis Drinks Expo

San Francisco

July 30, 2020 – July 31, 2020


Indo Expo Trade Show

Portland, Oregon

August 1, 2020 – August 2, 2020


Southern Hemp Expo

Nashville, Tennessee

August 14, 2020 – August 15, 2020


29th Seattle HEMPFEST

Seattle, Washington

August 14, 2020 – August 16, 2020


Midwest Cannabis Business Conference

Detroit, Michigan

August 25, 2020 – August 27, 2020


The New Jersey Cannabis Convention NECANN

Atlantic City, New Jersey

September 11, 2020 – September 12, 2020


Cannabis World Congress & Business Expo

Los Angeles, California

September 16, 2020 – September 17, 2020


Natural Products Expo East

Philadelphia, Pennsylvania

September 24, 2020 – September 26, 2020


New West Summit

San Francisco, California

October 10, 2020 – October 12, 2020


Cannabis World Congress & Business Expo

Boston Massachusetts

October 21, 2020 – October 22, 2020


Election Day for MMJ/Adult Use

9+ States

November 3, 2020


The Emerald Cup

Santa Rosa, California

December 13, 2020 – December 14, 2020


Marijuana Business Daily – MJBizCon

Las Vegas, Nevada

December 18, 2020 – December 18, 2020